ESD GROUNDING
(cont)
NOTE:
If benches are moved to another location, the ground bolts in
the worksurfaces should be re-tested. Refer to EOS/ESD document S4.1-
1990 Worksurfaces-Resistive Characterization for proper testing
methods. If ground has been disturbed between the bolt and the static
dissipative laminate, DO NOT OVER TIGHTEN ground bolts to achieve
proper ground. If ground cannot be re-established, loosen nuts
underneath bolt and remove ground bolt from hole. It may be necessary
to hold the threads of the bolt with a small screwdriver in order to
stabilize it to remove the nuts. Paint a thin layer of CONDUCTIVE
ADHESIVE or CONDUCTIVE PAINT on the small "ledge" of conductive
laminate where the bolt head rests and underneath THE HEAD of the
ground bolt. Set bolt back into the hole while liquid is still wet and
test ground immediately. At the point ground is reestablished, let the
liquid dry before reattaching the ground wire.
GROUNDING OF ESD SHELVES:
Coiled ground cord has an eyelet at both ends. Slip one eyelet end over
the 1/4-20x1/2" Hex Head Bolt in the ESD Grounding Kit for the
worksurface (Hardware Kit #HWR014) before screwing the bolt into the
1/4-20x7/8" nut. (See diagram on previous page). Slip the other eyelet end
over the 1/4-20x1/2" Hex Head Bolt in the ESD Grounding Kit for the
shelf (Hardware Kit #HWR122) and attach to one of the ground bolts
under the shelf as shown in the diagram on the previous page.
CLEANING:
Hard surface laminate is designed to resist abrasion,
scuffing, scorching, hot solder, flux and most solvents. Intense
exposure, such as from a hot soldering iron is not recommended. The
surface cleans easily with a damp cloth and soapy water. A mild chemical
cleaner with no abrasive can be used for stubborn spots. Remove glue
and grease with a non flammable adhesive solvent such as 3M Scotch-
Grip Solvent No. 4-F. Stains can be removed with a two minute exposure
to a 5% hypo chloride bleach solution, followed by a clean water rinse.
Never wax surface, as waxes may insulate.
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